maezawa shunichi

College of Humanities and Sciences Department of Information ScienceAssociate Professor

Researcher Information

Degree

  • Doctor of Science, Yokohama National University, Sep. 2020
Research activity information

Award

  • 日本数学会, 2022年度応用数学研究奨励賞
    グラフが7-彩色可能であるための禁止イマージョン条件

Paper

  • On DP-coloring of outerplanar graphs
    Tianjiao Dai; Jie Hu; Hao Li; Shun-ichi Maezawa
    Discrete Mathematics, Jun. 2026, Refereed
  • Sufficient conditions for edge-colored bipartite graphs to have rainbow and properly colored spanning trees
    Shinya Fujita; Mikio Kano; Shun-ichi Maezawa; Masao Tsugaki; Kiyoshi Yoshimoto
    Discrete Mathematics, Apr. 2026, Refereed
  • Preorder induced by rainbow forbidden subgraphs
    Shun-ichi Maezawa; Akira Saito
    Discrete Mathematics, Mar. 2026, Refereed
  • Reconfiguration of Time-Respecting Arborescences
    Takehiro Ito; Yuni Iwamasa; Naoyuki Kamiyama; Yasuaki Kobayashi; Yusuke Kobayashi; Shun-ichi Maezawa; Akira Suzuki
    Algorithmica, Dec. 2025, Refereed
  • An odd 4-coloring of a maximal outerplanar graph
    Masaki Kashima; Shun-ichi Maezawa; Kakeru Osako; Kenta Ozeki; Shoichi Tsuchiya
    Discrete Mathematics, Oct. 2025, Refereed
  • The Solitaire Clobber game and the correducibility of k-connected graphs
    Tatsuya Fujimori; Shun-ichi Maezawa; Yoshio Okamoto
    Discrete Applied Mathematics, May 2025, Refereed
  • Reconfiguration of colorings in triangulations of the sphere
    Takehiro Ito; Yuni Iwamasa; Shun-ihci Maezawa; Yuta Nozaki Yoshio; Okamoto; Kenta Ozeki
    Journal of Computational Geometry, Apr. 2025, Refereed, Not invited
  • Distribution of Vertices Required a High‐Degree Condition on Partitions of Graphs Under Degree Constraints
    Michitaka Furuya; Shun‐ichi Maezawa
    Journal of Graph Theory, Feb. 2025, Refereed
  • Rerouting Planar Curves and Disjoint Paths
    Takehiro Ito; Yuni Iwamasa; Naonori Kakimura; Yusuke Kobayashi; Shun-Ichi Maezawa; Yuta Nozaki; Yoshio Okamoto; Kenta Ozeki
    ACM Transactions on Algorithms, Jan. 2025, Refereed
  • A graph minor condition for graphs to be k-linked
    Shun ichi Maezawa
    European Journal of Combinatorics, Feb. 2024, Refereed
  • Hardness of Finding Combinatorial Shortest Paths on Graph Associahedra
    Takehiro Ito; Naoyuki Kamiyama; Shun Ichi Maezawa; Yoshio Okamoto; Naonori Kakimura; Yusuke Kobayashi; Yuta Nozaki
    Leibniz International Proceedings in Informatics, LIPIcs, Jul. 2023, Refereed
  • Rerouting Planar Curves and Disjoint Paths
    Takehiro Ito; Naonori Kakimura; Shun Ichi Maezawa; Yoshio Okamoto; Yuni Iwamasa; Yusuke Kobayashi; Yuta Nozaki; Kenta Ozeki
    Leibniz International Proceedings in Informatics, LIPIcs, Jul. 2023, Refereed
  • Reconfiguration of Colorings in Triangulations of the Sphere
    Takehiro Ito; Yuni Iwamasa; Yusuke Kobayashi; Shun Ichi Maezawa; Yuta Nozaki; Yoshio Okamoto; Kenta Ozeki
    Leibniz International Proceedings in Informatics, LIPIcs, Jun. 2023, Refereed
  • Monotone Edge Flips to an Orientation of Maximum Edge-Connectivity à la Nash-Williams
    Takehiro Ito; Yuni Iwamasa; Naonori Kakimura; Naoyuki Kamiyama; Yusuke Kobayashi; Shun Ichi Maezawa; Yuta Nozaki; Yoshio Okamoto; Kenta Ozeki
    ACM Transactions on Algorithms, Feb. 2023, Refereed
  • Reconfiguration of Time-Respecting Arborescences
    Takehiro Ito; Yuni Iwamasa; Naoyuki Kamiyama; Yasuaki Kobayashi; Yusuke Kobayashi; Shun ichi Maezawa; Akira Suzuki
    Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2023, Refereed
  • Characterization of (m, n)-Linked Planar Graphs
    Kengo Enami; Shun-ichi Maezawa
    Graphs and Combinatorics, Aug. 2022, Refereed
  • Maximum properly colored trees in edge-colored graphs
    Jie Hu; Hao Li; Shun ichi Maezawa
    Journal of Combinatorial Optimization, Aug. 2022, Refereed
  • A forbidden pair for connected graphs to have spanning k-trees
    Shun ichi Maezawa; Kenta Ozeki
    Journal of Graph Theory, Mar. 2022, Refereed
  • Monotone edge flips to an orientation of maximum edge-connectivity à la Nash-Williams
    Takehiro Ito; Yuni Iwamasa; Naonori Kakimura; Naoyuki Kamiyama; Yusuke Kobayashi; Shun-ichi Maezawa; Yuta Nozaki; Yoshio Okamoto; Kenta Ozeki
    Proceedings of the 2022 Annual ACM-SIAM Symposium on Discrete Algorithms (SODA), Jan. 2022, Refereed
  • DEGREE SUM CONDITION FOR THE EXISTENCE OF SPANNING k-TREES IN STAR-FREE GRAPHS
    Michitaka Furuya; Shun Ichi Maezawa; Ryota Matsubara; Haruhide Matsuda; Shoichi Tsuchiya; Takamasa Yashima
    Discussiones Mathematicae - Graph Theory, 2022, Refereed
  • Special case of Rota’s basis conjecture on graphic matroids
    Shun Ichi Maezawa; Akiko Yazawa
    Electronic Journal of Combinatorics, 2022, Refereed
  • On 3-polytopes with non-Hamiltonian prisms
    Daiki Ikegami; Shun ichi Maezawa; Carol T. Zamfirescu
    Journal of Graph Theory, Jul. 2021, Refereed
  • Closure and Spanning Trees with Bounded Total Excess
    Shun ichi Maezawa; Masao Tsugaki; Takamasa Yashima
    Graphs and Combinatorics, May 2021, Refereed
  • A Fan-type condition for graphs to be k-leaf-connected
    Shun ichi Maezawa; Ryota Matsubara; Haruhide Matsuda
    Discrete Mathematics, Apr. 2021, Refereed
  • Color degree sum conditions for properly colored spanning trees in edge-colored graphs
    Mikio Kano; Shun ichi Maezawa; Katsuhiro Ota; Masao Tsugaki; Takamasa Yashima
    Discrete Mathematics, Nov. 2020, Refereed
  • Long Paths in Bipartite Graphs and Path-Bistar Bipartite Ramsey Numbers
    Michitaka Furuya; Shun ichi Maezawa; Kenta Ozeki
    Graphs and Combinatorics, Jan. 2020, Refereed
  • Degree Conditions for Graphs to Have Spanning Trees with Few Branch Vertices and Leaves
    Shun ichi Maezawa; Ryota Matsubara; Haruhide Matsuda
    Graphs and Combinatorics, Jan. 2019, Refereed
  • Connected odd factors of graphs
    Nastaran Haghparast; Mikio Kano; Shunichi Maezawa; Kenta Ozeki
    Australasian Journal of Combinatorics, 2019, Refereed

Affiliated academic society

  • 日本数学会

Research Themes

  • 辺の分布に着目した有向グラフのk-linkedの解析手法
    日本学術振興会, 科学研究費助成事業, 01 Apr. 2025 - 31 Mar. 2029
    前澤 俊一
  • 極値グラフ理論的観点による完全多部グラフマイナーのスペクトラム解析
    日本学術振興会, 科学研究費助成事業, 01 Apr. 2022 - 31 Mar. 2025
    前澤 俊一
  • Development of Combinatorial Reconfiguration by Mathematics Approach: From Examples to New Methods
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 02 Oct. 2020 - 31 Mar. 2023
    岡本 吉央; 神山 直之; 小関 健太; 垣村 尚徳; 小林 佑輔; 野崎 雄太; 岩政 勇仁; 前澤 俊一
  • Regularity Lemmaの禁止部分グラフ条件への適用
    日本学術振興会, 科学研究費助成事業, 24 Apr. 2020 - 31 Mar. 2022
    前澤 俊一